At some point between the Battle of Yavin and the Battle of Hoth, the project went horribly awry. Imperial troops stationed at the research facility were infected by the Sickness, which killed them and turned their corpses into mindless, cannibalistic monsters. A distress call was sent, but the facility had gone silent when the Imperial command answered it. When it became evident that an army of Undead Troopers was spreading on Dandoran, commanders of the Empire tried to keep things under wraps, while the enemy Alliance to Restore the Republic tried to locate the source of the outbreak.[1]